Claerwen Reservoir Rainfall ForecastUnited KingdomWLPowysClaerwen ReservoirToday 17 Aug20%Mon 18 Aug15%Tue 19 Aug15%Wed 20 Aug10%Thu 21 AugNo RainFri 22 Aug5%Claerwen Reservoir rainfall forecast issued yesterday at 7:37 pm. Next forecast at approx. 9:37 am.1-Day3-Day5-Day Graph Plots Open in Graphs Rainfall Probability Forecast Met Office Rain Today Real-Time Crug-y-Gorllwyn (Carmarthenshire) RadarNational SatelliteNational SynopticGet WillyWeather+ to remove ads